Dtmf Parameters - AudioCodes Mediant 500L User Manual

User's Manual
Parameter
Silk Max Average Bit Rate
configure voip > media settings
> silk-max-average-bitrate
[SilkMaxAverageBitRate]
configure voip > media settings
> vbr-coder-header-format
[VBRCoderHeaderFormat]
configure voip > media settings
> vbr-coder-hangover
[VBRCoderHangover]
AMR Payload Format
[AmrOctetAlignedEnable]
configure voip > media settings
> amr-header-format
[AMRCoderHeaderFormat]

69.9.3 DTMF Parameters

The dual-tone multi-frequency (DTMF) parameters are described in the table below.
Parameter
DTMF Transport Type
configure voip > media voice >
DTMF-transport-type
[DTMFTransportType]
Version 7.2
Defines the maximum average bit rate for the SILK coder.
The valid value range is 6,000 to 50,000. The default is 50,000.
The SILK coder is Skype's default audio codec used for Skype-to-
Skype calls.
Determines the format of the RTP header for VBR coders.

[0] = (Default) Payload only (no header, TOC, or m-factor) -
similar to RFC 3558 Header Free format.

[1] = Supports RFC 2658 - 1 byte for interleaving header (always
0), TOC, no m-factor.

[2] = Payload including TOC only, allow m-factor.

[3] = RFC 3558 Interleave/Bundled format.
Defines the required number of silence frames at the beginning of
each silence period when using the VBR coder silence
suppression.
The range is 0 to 255. The default is 1.
Defines the AMR payload format type.

[0] Bandwidth Efficient

[1] Octet Aligned (default)
Note:

The AMR payload type can also be configured per Coder Group
(see Configuring Coder Groups on page 429). The Coder Group
configuration overrides the parameter.
Determines the payload format of the AMR header.

[0] = Non-standard multiple frames packing in a single RTP
frame. Each frame has a CMR and TOC header.

[1] = AMR frame according to RFC 3267 bundling.

[2] = AMR frame according to RFC 3267 interleaving.

[3] = AMR is passed using the AMR IF2 format.
Note:

Bandwidth Efficient mode is not supported; the mode is always
Octet-aligned.
Table 69-36: DTMF Parameters
Determines the DTMF transport type.

[0] Mute DTMF = DTMF digits are removed from the voice
stream and are not relayed to remote side.

[2] Transparent DTMF = DTMF digits remain in the voice
stream.

[3] RFC 2833 Relay DTMF = (Default) DTMF digits are removed
from the voice stream and are relayed to remote side according
1103
69. Configuration Parameters Reference
Description
Description
Mediant 500L Gateway & E-SBC